Form for concrete culverts.



A. D. RICE.

Foam FOB CONCRETE cuLvERTs.

APPLICAIN FILED JAN.29. 1918.

WITNESSES ATTOR N EY A. D. MCE. Foam ma comme cum/ems. n APFLICAHUN FILED MN. Z9, 191B. lg'a Patented 0010.29, 1918.

ATTORNEY n.: man rnnrs n, mmauruo.. msnmmwf. n. cv

Frr n Ronin n. EIcE, or DELPHos, KANSAS.

Eonivi Eon coNcEETE cULvEETs.

specification of Leners raient.

Patenten oct. ee, init.

Application filed January 29,1918. fSeria1No. 214,362.

To all whom it may concern: 0

Beit known that I, AncrrrE D. Riou, a citizen of the UnitedStates, residing at Delphos, in the county of Ottawa and State of Kansas, have invented certain new and useful Improvements in Forms for Concrete Culverts, of which the following is a specification.

' This invention relates to concrete culvert forms and has for its object the production of a simple and eiflcient concrete culvert form which is formed of sheet metal and is thoroughly reinforced and assembled for the purpose of facilitating the formation of a concrete culvert under a road bed and the like. Another object of this invention is'the production of a simple and eflicient concrete c ulvert form all of the parts thereof., being formed of sheet metal, for facilitating the cheapening of the construction and durability `ofthe form.

Tith these and other objects in view this invention consists of certain novel constructions..l combinations and arrangements of parts as will `be hereinafter fully described and claimed.

' Eig. e.,

In the drawings:

Figure 1 is a side elevation of the outer section of the concrete form.

Fig. 2 is a section taken on line 2 2 of IFig.f

Fig. 3 is atransverse` section through the concrete form looking atthe inner form sectionor inner plate.

Fig. 4 isa section taken on 'line 4-4 of Fig. 5 Vis a detail perspective view of one ofthe adjusting brackets adapted to connect the core plate of the form.

" VBy referring to the-drawings, it will be seen that 1 designates the end of the concrete form which is formed of a central plate 2 and a pair of `end plates 3 and 4. Each -of the plates 2, 3 and 4 is provided j with an angle-iron reinforcing strip 5 along the upper edge thereof,ithis strip'being se* cured to the plates 2, Band 4 by means of suitable rivets 6. Eachof the plates 3 and 4 is provided with a vertically extending angleiron reinforcing plate 7 upon the end thereof and suitable reinforcing'angle iron plates Srare extended across the bottom of each of the plates 2, 3 and 4 as shown in Fig. 1. Each of the plates 3 and 4 carries a vertically extending angle-iron bracing plate 9 upon its inner edge and these plates 9 engage the vertically extending angle-iron reinforcing plate 10 carried by the sideedges of the intermediate or central plate 2. Each of the plates 2, 3 and 4 is reinforced by means of the crossed strap portion 11 as shown in Fig. l of the drawings. The central plate 2 is further reinforced by means of a ncentrally located vertically extending flat reinforcing strap 12, as shown in Fig. l.

Substantially triangular shaped bottom bracing plates 13 are arranged below the end plates 3 and 4 as shown in Fig. 1 and are firmly connected to the angle-iron reinforcing strap 8by means of the angle iron top strap 14. The inner end of each plate 18 carries a vertically extending angle iron reinforcing strap 15 and the lower edge 16 of each of the plates 13 is braced by means of a flat reinforcing strap 17.

`A `pair of adjusting brackets 18 are supported below the central plate 2 and are connected to the bottom reinforcing angle-iron strap 8 carried by the plate 2 by means of suitable rivets 19. Each of the brackets 18 is provided with an overhanging upper flange 20, each of the flanges 20 `being provided with a-lo'ngitudinally extending adjusting aperture 21 through which the rivet or suitable bolt 19 passes. The overhanging flange 20 of one of the brackets 18 overlaps the overhanging flange of the adjoining brackets for thev purpose of facilitating the connection of the bracket together and holding the same in firm adjusted relation. Each bracket 18 is provided with a depending portion 22, the depending portion 22 being riveted or boltedin any suitable or desired manner to the vertically extending angle-iron braces 15Y The lower end of each of the vertically ex tending portions 22 of each bracket 1S is provided with an integrally extending foot 24. terminating in an upwardly extending lip 25 at the inner end thereof. These upwardly extending lips 25 are adapted to brace the lower end of the bracket 18 and support the same upon the bottom of the creek over which the culvert is being formed. These brackets 18 are adapted to extend beyond the inner face of the plates 2, 3 and 4 as shown in Fig. 2 of the drawings, to constitute a support for the bottom wall 26 of the core which constitutes a support for the plastic material, while the same is being formed. This bottom wall 26 is formed of a .plurality of overlapping plates 27, these plates being connected in any suitable or desired manner, such as by means of rivets, bolts and the like. These plates are arranged to overlap and are also extended downwardly upon the sides of the vbracket 18 for the purpose of constituting overlapping side walls 28 shown in Fig. 3 of the drawings. It should be understood that this culvert may be made of any length desired merely by connecting` the abutting of the floor or bottom wall 26 as shown in Fig. 2, these ends being connected by means of brackets or straps 29 formed similar-in construction to thc brackets 18 above described.

In order to have the end walls of the culvert of the desired thickness, an inner section illustrated in Fig. 3 is employed and this inner section is indicated by the numeral 30 and is formed somewhat similar in construction to the outer section 1` above described. This inner section30 comprises a pair of end plates 31 and an intermediate plate 32, the intermediate plate 32 being of greater length than the intermediate plate 2 of the outer section 1 forthe purpose of allowing for the width or thickness of the plastic material which is adapted to constitute a body ofthe culvert afterthe same is formed, or in other words after the plastic material has become set. The inner section 30 is formed or constructed to the outer section 1 and is provided with the usual angle iron reinforcing strap and the crossed flat strap for rein- -forcing the plates 31 and 32 as shown in Fig. 3, the central plate32 being merely provided with a pair of crossed reinforcing straps 33, the vertically extending reinforcing straps similar to the strap 12 shown in Fig. 1, being eliminated for the reason that it has been found that the same is unnecessary in this particular construction. The inner plate 32 in the inner section 30 terminates short of the lower end of the outer plate 2 in thle outer section 1, for the purpose of accommodating the thickness of the plastic material which is formed or constitutes the culvert body. A substantially U-s'haped reinforcing strap 34k is secured to the bottom edge of the central plate 32 and is provided with downwardly extending end portions 35, the end portions 35 constituting a supporting means for the outer walls 36 of the culvert form. This wall 36 may be secured in any suitable or desired manner to the reinforcing plate 34: and extending end 35, as will be obvious. The ends of the outer section 1 and the inner section 30, are connected by means of the end plates 37, these end plates extending transversely across the ends of the' respective sections, and over-hanging the end angle iron member 7 ofthe section 1 and the similarly `constructed end angle-iron members verify the inner sections 30.

From the foregoing description, it will be seen that a very simple and efficient form which is made of sheet metal has been produced for the purpose of facilitating the proper formation or setting of a plastic culvert and the like under the road bed or in other similar places Where a culvert may be found convenient and useful. It of course should be understood that certain detail mechanical changes may be made in the present device without departing from the spirit of the invention, so long as these changes fall within the scopeof the appended claims.

It of course should be understood that different or various sizes of culverts may be formed merely by reducing the size of the central plates 2 and .32 or may-be made larger by increasing the size thereofwithout departing from the spirit of the invention. Such changes as indicated therefore are involved within the scope of the mechanical skill and it is thought unnecessary to go into details in the description and illustration of such a reduction or increase in sizeof the several parts. v

It of course should be understood that only one of the molds has been shown for the purpose of forming one end wall of the culvert, and it is perfectly obvious that two such molds are necessary, one for each end of the culvert for the purpose of constituting a wall upon either side of the road or upon each end of the culvert. These end sections of course are connected by suitable water passage ways forming molds or plates indicated by the numerals 27 and 36, in this way permitting a water passage-way or tunnel 38 to be formed by means of the mold illustrated with the end walls 39 shown in Fig. 2 of the drawings.

What is claimed is:

. 1; A plastic form of the class described comprising an inner and outer section, means for holding said sectionsin spaced relation, each section comprising apair of end plates and an intermediate plate, a triangularly shaped bracing plate secured under the bottom of each end plate, a pluralityof bracing brackets interposed between said end plates and extending across thebottom of said intermediate plate, each bracket being adjustable relative to Jthe other bracket, and means for supporting a water passage rforming molds in engagement with said bracket.

2. A mold 4of the class described comprising an inner section and' an VouterV section, means for holding said sections in spaced relation, and plates carried byeach of said sections, a pair of brackets adjustably supported upon one of said sections,` each bracket provided with an overlapping portion, the overlapping-portions of said brackets being provided 'with registering longitudinally extending slots, `means passing through said slots, for holding said brackets Yin .an adjusted relation, each bracket provided with an Vextended end portion having an inwardly extending foot, said inwardly extending foot of each bracket being provided with an upturned end and adapted to constitute a support for said sections, and means for constructing a Water passage-Way formed in engagement with said brackets.

3. A plastic form of the class described l comprising an inner and an outer section,

iot

means for holding said sections in spaced relation, each section comprising a plurality of plates, the plates of one section having their junction staggered With respect to the junction 0f the plates comprising the other section, reinforcing members secured to Said plates at their iunctions for facilitating the connection of said plates together, and a Water conduit forming means suspended below said plates.

4E. A plastic form of the class described lili.

comprising an inner and outer section, means for holding said sections in spaced relation, each section comprising a plurality of plates, reinforcing angle irons extending around the edges of said plates, the abutting edges of said plates provided with reinforcing angle irons secured together, cross metallic braces extending diagonally from corner to corner across said plates, a bracing plate secured under the bottom of each section, a plurality of bracing brackets interposed between some of said plates, and means for adjustably securing said brackets together.

In testimony whereof I aiix my signature in presence of two Witnesses.

ARCI-nn n. Bron.

Witnesses:

L. A. DOYLE, C. A. FELTEN.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patenti, Washington, D. C. 

